White People - summary(nes$whiteppl) - Min. 1st Qu. Median Mean 3rd Qu. Max. NA's 0.00 50.00 70.00 73.32 85.00 100.00 270.00
sd(nes$whiteppl, na.rm=TRUE) = 19.49
The average rating white people were given was a 73, meaning that most people feel relatively good about them. The range of data from 50-85 was the most concentrated part, as determined by quartiles.
Black People - summary(nes$blacks) - Min. 1st Qu. Median Mean 3rd Qu. Max. NA's 0.00 50.00 70.00 72.04 85.00 100.00 267.00
sd(nes$blacks, na.rm=TRUE) = 20.65
The average rating for Black people was sligthly lower, showing that the concentration of ratings occurs little lower while still only ranging from 50-85.
A correlation of .5 could mean that most peoples feelings about different races may depend on what race they are, and it could also suggest that black people and white people are fairly equal in rating as determined by the data.
Pretty solid start. Did you try running the scatterplot function in the car package? Also, think a little about what is a correlation? what is a standard deviation? These are things you want to make sure you know!
Quantitative Methods Midterm
Feeling thermometers -
White People - summary(nes$whiteppl) -
Min. 1st Qu. Median Mean 3rd Qu. Max. NA's
0.00 50.00 70.00 73.32 85.00 100.00 270.00
sd(nes$whiteppl, na.rm=TRUE) = 19.49
The average rating white people were given was a 73, meaning that most people feel relatively good about them. The range of data from 50-85 was the most concentrated part, as determined by quartiles.
Black People - summary(nes$blacks) -
Min. 1st Qu. Median Mean 3rd Qu. Max. NA's
0.00 50.00 70.00 72.04 85.00 100.00 267.00
sd(nes$blacks, na.rm=TRUE) = 20.65
The average rating for Black people was sligthly lower, showing that the concentration of ratings occurs little lower while still only ranging from 50-85.
cor(nes$whiteppl, nes$blacks, use="complete.obs")
[1] 0.5172538
A correlation of .5 could mean that most peoples feelings about different races may depend on what race they are, and it could also suggest that black people and white people are fairly equal in rating as determined by the data.
Pretty solid start. Did you try running the scatterplot function in the car package? Also, think a little about what is a correlation? what is a standard deviation? These are things you want to make sure you know!